AA 7039 Aluminum Alloy
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Family: Aluminum Alloy
Zinc Alloy (Al-Zn). AA designation 7039.
Performance Ratings
Performance Radar
Composition
Mechanical Properties
| Tensile Strength | 414.0 MPa |
| Yield Strength | 328.0 MPa |
| Elongation | 15.1% |
| Hardness (Rockwell) |
Chemical Composition
| Element | Percentage (%) |
|---|---|
| Al | 92,13 |
| Cr | 0,15 |
| Cu | 0,085 |
| Fe | 0,265 |
| Mg | 2,5 |
| Mn | 0,265 |
| Si | 0,17 |
| Ti | 0,055 |
| Zn | 4,21 |
| Zr | 0,085 |
Where to Buy AA 7039 Aluminum Alloy
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Description
AA 7039 is a weldable high-strength aluminum-zinc-magnesium alloy (~3.5–4.5% Zn, 2.3–3.3% Mg) with zinc and magnesium content balanced to allow welding without sensitization to stress corrosion cracking. It achieves T64 temper through controlled artificial aging and offers significantly higher strength than 5083 in welded structural applications. Primary uses include armored military vehicle hulls, structural armor plates, and welded high-strength structural components.